ir.h revision 95cd6cc195f4652378d7ecf614c6e1c568311a04
1986b8f798272d3ae2898617c8fb089156a5941c0Ian Romanick/* -*- c++ -*- */ 2a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/* 3a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Copyright © 2010 Intel Corporation 4a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 5a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Permission is hereby granted, free of charge, to any person obtaining a 6a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * copy of this software and associated documentation files (the "Software"), 7a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * to deal in the Software without restriction, including without limitation 8a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * and/or sell copies of the Software, and to permit persons to whom the 10a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Software is furnished to do so, subject to the following conditions: 11a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 12a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * The above copyright notice and this permission notice (including the next 13a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * paragraph) shall be included in all copies or substantial portions of the 14a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Software. 15a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 16a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * DEALINGS IN THE SOFTWARE. 23a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 24a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 25e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#pragma once 26e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#ifndef IR_H 27e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#define IR_H 28e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick 290044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick#include "list.h" 3078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick#include "ir_visitor.h" 310044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick 32a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickstruct ir_program { 33a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick void *bong_hits; 34a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 35a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 36a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/** 37a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Base class of all IR instructions 38a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 390044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanickclass ir_instruction : public exec_node { 40a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 41a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const struct glsl_type *type; 42a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 431cf43a4331dfe62aaa834e5bc6319b43eac98445Ian Romanick class ir_constant *constant_expression_value(); 4478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *) = 0; 4578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 4644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /** 4744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * \name IR instruction downcast functions 4844e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * 4944e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * These functions either cast the object to a derived class or return 5044e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * \c NULL if the object's type does not match the specified derived class. 5144e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * Additional downcast functions will be added as needed. 5244e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke */ 5344e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /*@{*/ 5444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual class ir_variable * as_variable() { return NULL; } 5544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual class ir_dereference * as_dereference() { return NULL; } 56fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke virtual class ir_rvalue * as_rvalue() { return NULL; } 5744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /*@}*/ 5844e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 59a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickprotected: 6044e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke ir_instruction() 61d27ec2461bca2625d09a3592ec8cc4137d4347f3Ian Romanick { 62d27ec2461bca2625d09a3592ec8cc4137d4347f3Ian Romanick /* empty */ 63d27ec2461bca2625d09a3592ec8cc4137d4347f3Ian Romanick } 64a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 65a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 66a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 67fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_rvalue : public ir_instruction { 68fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkepublic: 69fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke virtual ir_rvalue * as_rvalue() 70fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke { 71fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke return this; 72fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke } 73fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 74fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke virtual bool is_lvalue() 75fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke { 76fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke return false; 77fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke } 78fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 79fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeprotected: 80fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue() : ir_instruction() { } 81fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke}; 82fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 83fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 84a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickenum ir_variable_mode { 85a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_auto = 0, 86a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_uniform, 87a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_in, 88a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_out, 89a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_inout 90a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 91a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 92a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickenum ir_varaible_interpolation { 93a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_smooth = 0, 94a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_flat, 95a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_noperspective 96a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 97a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 98fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 99a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_variable : public ir_instruction { 100a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 101a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_variable(const struct glsl_type *, const char *); 102a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 10344e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual ir_variable *as_variable() 10444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke { 10544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke return this; 10644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke } 10744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 10878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 10978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 11078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 11178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 11278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 113a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const char *name; 114a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 115a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned read_only:1; 116a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned centroid:1; 117a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned invariant:1; 118a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 119a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned mode:3; 120a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned interpolation:2; 121a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 122a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 123a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 124a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_label : public ir_instruction { 125a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 126a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_label(const char *label); 127a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 12878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 12978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 13078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 13178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 13278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 133a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const char *label; 134a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 135a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 136a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 137a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/*@{*/ 138a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_function_signature : public ir_instruction { 139a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 140e39cc69fa3cb830b803fe0c4f6c30915aa886b5bIan Romanick ir_function_signature(const glsl_type *return_type); 141a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 14278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 14378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 14478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 14578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 14678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 147a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 148a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Function return type. 149a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 150a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \note This discards the optional precision qualifier. 151a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 152a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const struct glsl_type *return_type; 153a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 154a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 155a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * List of function parameters stored as ir_variable objects. 156a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 1570044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick struct exec_list parameters; 158a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 159a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 160a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Pointer to the label that begins the function definition. 161a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 162a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_label *definition; 1636a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 1646a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanickprivate: 1656a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick /** Function of which this signature is one overload. */ 1666a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick class ir_function *function; 1676a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 1686a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick friend class ir_function; 169a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 170a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 171a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 172a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/** 173a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Header for tracking functions in the symbol table 174a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 175a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_function : public ir_instruction { 176a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 177882dad75408fc4071a9dd700309f9e54f6ad2650Ian Romanick ir_function(const char *name); 178a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 17978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 18078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 18178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 18278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 18378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 1846a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick void add_signature(ir_function_signature *sig) 1856a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick { 1866a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick sig->function = this; 1876a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick signatures.push_tail(sig); 1886a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick } 1896a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 190a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 19195cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick * Get an iterator for the set of function signatures 19295cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick */ 19395cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick exec_list_iterator iterator() 19495cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick { 19595cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick return signatures.iterator(); 19695cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick } 19795cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick 19895cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick /** 199471471f83471481db0445e73f8c89e6a9149838eIan Romanick * Find a signature that matches a set of actual parameters. 200471471f83471481db0445e73f8c89e6a9149838eIan Romanick */ 201471471f83471481db0445e73f8c89e6a9149838eIan Romanick const ir_function_signature *matching_signature(exec_list *actual_param); 202471471f83471481db0445e73f8c89e6a9149838eIan Romanick 203471471f83471481db0445e73f8c89e6a9149838eIan Romanick /** 204a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Name of the function. 205a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 206a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const char *name; 207a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 208471471f83471481db0445e73f8c89e6a9149838eIan Romanick /** 209471471f83471481db0445e73f8c89e6a9149838eIan Romanick * Set of overloaded functions with this name. 210471471f83471481db0445e73f8c89e6a9149838eIan Romanick */ 2110044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick struct exec_list signatures; 212a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 213a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/*@}*/ 214a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 215a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 2163c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick/** 2173c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick * IR instruction representing high-level if-statements 2183c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick */ 2193c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanickclass ir_if : public ir_instruction { 2203c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanickpublic: 2213c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick ir_if(ir_rvalue *condition) 2223c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick : condition(condition) 2233c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick { 2243c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick /* empty */ 2253c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick } 2263c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 2273c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick virtual void accept(ir_visitor *v) 2283c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick { 2293c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick v->visit(this); 2303c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick } 2313c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 2323c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick ir_rvalue *condition; 2333c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick exec_list then_instructions; 2343c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick exec_list else_instructions; 2353c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick}; 2363c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 2373c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 238fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_assignment : public ir_rvalue { 239a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 240fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_assignment(ir_rvalue *lhs, ir_rvalue *rhs, ir_rvalue *condition); 241a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 24278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 24378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 24478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 24578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 24678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 247a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 248a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Left-hand side of the assignment. 249a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 250fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *lhs; 251a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 252a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 253a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Value being assigned 254a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 255fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *rhs; 256a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 257a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 258a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Optional condition for the assignment. 259a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 260fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *condition; 261a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 262a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 263e65e12fdbc2f51ecc3ca9265993c0c7a03e05a84Eric Anholt/* Update ir_print_visitor.cpp when updating this list. */ 264a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickenum ir_expression_operation { 265a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_bit_not, 266a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_logic_not, 267a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_neg, 268a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_abs, 269a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_rcp, 270a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_rsq, 27144d68fd06ff8b53fc70a9a07c897dda9b3457ef8Eric Anholt ir_unop_sqrt, 272a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_exp, 273a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_log, 27401665262e50162e858c45f92a8a7e12b953e56adEric Anholt ir_unop_exp2, 27501665262e50162e858c45f92a8a7e12b953e56adEric Anholt ir_unop_log2, 276a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_f2i, /**< Float-to-integer conversion. */ 277a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_i2f, /**< Integer-to-float conversion. */ 2786c86ea8adc095abeef7b3cd63d3321185542bf36Ian Romanick ir_unop_u2f, /**< Unsigned-to-float conversion. */ 279a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 280a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 281a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \name Unary floating-point rounding operations. 282a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 283a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 284a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_trunc, 285a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_ceil, 286a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_floor, 287a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 288a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 289a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_add, 290a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_sub, 291a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_mul, 292a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_div, 293a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_mod, 294a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 295a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 296a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \name Binary comparison operators 297a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 298a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 299a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_less, 300a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_greater, 301a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_lequal, 302a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_gequal, 303a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_equal, 304a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_nequal, 305a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 306a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 307a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 308a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \name Bit-wise binary operations. 309a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 310a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 311a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_lshift, 312a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_rshift, 313a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_and, 314a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_xor, 315a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_or, 316a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 317a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 318a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_and, 319a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_xor, 320a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_or, 321a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_not, 322a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 323a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_dot, 324a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_min, 325a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_max, 326a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 327a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_pow 328a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 329a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 330fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_expression : public ir_rvalue { 331a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 332a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_expression(int op, const struct glsl_type *type, 333fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *, ir_rvalue *); 334a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 33578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 33678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 33778b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 33878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 33978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 340a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_expression_operation operation; 341fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *operands[2]; 342a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 343a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 344a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 345ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick/** 346ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick * IR instruction representing a function call 347ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick */ 348fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_call : public ir_rvalue { 349ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanickpublic: 350471471f83471481db0445e73f8c89e6a9149838eIan Romanick ir_call(const ir_function_signature *callee, exec_list *actual_parameters) 351fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke : ir_rvalue(), callee(callee) 352ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick { 3539e7c34b865309c65ea5a763900e2d0eae4b58ce5Ian Romanick assert(callee->return_type != NULL); 3549e7c34b865309c65ea5a763900e2d0eae4b58ce5Ian Romanick type = callee->return_type; 355471471f83471481db0445e73f8c89e6a9149838eIan Romanick actual_parameters->move_nodes_to(& this->actual_parameters); 356ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick } 357ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 358ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick virtual void accept(ir_visitor *v) 359ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick { 360ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick v->visit(this); 361ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick } 362ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 363ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick /** 364ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick * Get a generic ir_call object when an error occurs 365ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick */ 366ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick static ir_call *get_error_instruction(); 367ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 3689878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick /** 3699878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick * Get an iterator for the set of acutal parameters 3709878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick */ 3719878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick exec_list_iterator iterator() 3729878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick { 3739878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick return actual_parameters.iterator(); 3749878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick } 3759878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick 37693614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick /** 37793614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick * Get the name of the function being called. 37893614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick */ 37993614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick const char *callee_name() const 38093614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick { 38193614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick /* FINISHME: This only works for functions that have definitions. */ 38293614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick return callee->definition->label; 38393614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick } 38493614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick 385ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanickprivate: 386471471f83471481db0445e73f8c89e6a9149838eIan Romanick ir_call() 387fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke : ir_rvalue(), callee(NULL) 388471471f83471481db0445e73f8c89e6a9149838eIan Romanick { 389471471f83471481db0445e73f8c89e6a9149838eIan Romanick /* empty */ 390471471f83471481db0445e73f8c89e6a9149838eIan Romanick } 391471471f83471481db0445e73f8c89e6a9149838eIan Romanick 392471471f83471481db0445e73f8c89e6a9149838eIan Romanick const ir_function_signature *callee; 393ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick exec_list actual_parameters; 394ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick}; 395ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 396ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 3979578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/** 3989578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * \name Jump-like IR instructions. 3999578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * 4009578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * These include \c break, \c continue, \c return, and \c discard. 4019578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick */ 4029578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/*@{*/ 4039578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickclass ir_jump : public ir_instruction { 4049578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickprotected: 4059578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick ir_jump() 40644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke : ir_instruction() 4079578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 4089578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick /* empty */ 4099578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 4109578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick}; 4119578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 4129578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickclass ir_return : public ir_jump { 4139578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickpublic: 4149578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick ir_return() 4159578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick : value(NULL) 4169578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 4179578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick /* empty */ 4189578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 4199578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 420fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_return(ir_rvalue *value) 4219578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick : value(value) 4229578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 4239578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick /* empty */ 4249578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 4259578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 426fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *get_value() const 4279578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 4289578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick return value; 4299578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 4309578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 4319578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick virtual void accept(ir_visitor *v) 4329578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 4339578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick v->visit(this); 4349578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 4359578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 4369578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickprivate: 437fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *value; 4389578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick}; 4399578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/*@}*/ 4409578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 4419578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 442a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickstruct ir_swizzle_mask { 443a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned x:2; 444a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned y:2; 445a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned z:2; 446a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned w:2; 447a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 448a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 449a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Number of components in the swizzle. 450a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 451f25a5ad93961c335b56d4f0508cc5c00b77ee519Kenneth Graunke unsigned num_components:3; 452a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 453a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 454a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Does the swizzle contain duplicate components? 455a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 456a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * L-value swizzles cannot contain duplicate components. 457a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 458a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned has_duplicates:1; 459a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 460a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 461affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 462affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunkeclass ir_swizzle : public ir_rvalue { 463affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunkepublic: 464affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_swizzle(ir_rvalue *, unsigned x, unsigned y, unsigned z, unsigned w, 465affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke unsigned count); 466affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke /** 467affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke * Construct an ir_swizzle from the textual representation. Can fail. 468affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke */ 469affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke static ir_swizzle *create(ir_rvalue *, const char *, unsigned vector_length); 470affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 471affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke virtual void accept(ir_visitor *v) 472affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke { 473affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke v->visit(this); 474affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke } 475affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 476affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke bool is_lvalue() 477affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke { 478a9fafc6504ebccdc0fee3d2529c3fe6068cc86b8Eric Anholt return val->is_lvalue() && !mask.has_duplicates; 479affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke } 480affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 481affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_rvalue *val; 482affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_swizzle_mask mask; 483affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke}; 484affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 485affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 486fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_dereference : public ir_rvalue { 487a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 488a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_dereference(struct ir_instruction *); 489a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 490fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_dereference(ir_instruction *variable, ir_rvalue *array_index); 491954699773681842dac9f8f0d9ba4629513232196Ian Romanick 49244e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual ir_dereference *as_dereference() 49344e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke { 49444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke return this; 49544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke } 49644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 49778b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 49878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 49978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 50078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 50178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 502fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke bool is_lvalue() 503fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke { 504c4f86d3b80047ce3a8be1fa69396856af1719bc9Eric Anholt if (var == NULL) 505521c2983b43570ece73d9377f812baa6bcaf94d3Ian Romanick return false; 506c4f86d3b80047ce3a8be1fa69396856af1719bc9Eric Anholt 507521c2983b43570ece73d9377f812baa6bcaf94d3Ian Romanick ir_variable *const as_var = var->as_variable(); 508c4f86d3b80047ce3a8be1fa69396856af1719bc9Eric Anholt if (as_var == NULL) 509521c2983b43570ece73d9377f812baa6bcaf94d3Ian Romanick return false; 510c4f86d3b80047ce3a8be1fa69396856af1719bc9Eric Anholt 511c4f86d3b80047ce3a8be1fa69396856af1719bc9Eric Anholt return !as_var->read_only; 512fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke } 513fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 514a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick enum { 515a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_reference_variable, 516a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_reference_array, 517a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_reference_record 518a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick } mode; 519a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 520a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 521a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Object being dereferenced. 522a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 523fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke * Must be either an \c ir_variable or an \c ir_rvalue. 524a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 525a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_instruction *var; 526a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 527a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick union { 528fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *array_index; 529a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const char *field; 530a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick } selector; 531a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 532a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 533a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 534fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_constant : public ir_rvalue { 535a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 536a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_constant(const struct glsl_type *type, const void *data); 5373c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(bool b); 5383c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(unsigned int u); 5393c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(int i); 5403c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(float f); 541a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 54278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 54378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 54478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 54578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 54678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 547a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 548a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Value of the constant. 549a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 550a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * The field used to back the values supplied by the constant is determined 551a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * by the type associated with the \c ir_instruction. Constants may be 552a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * scalars, vectors, or matrices. 553a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 554a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick union { 555a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned u[16]; 556a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick int i[16]; 557a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick float f[16]; 558a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick bool b[16]; 559a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick } value; 560a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 561a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 562adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick 563adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanickextern void 564adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick_mesa_glsl_initialize_variables(exec_list *instructions, 565adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick struct _mesa_glsl_parse_state *state); 566e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick 567c22c40015db32b68b33c4944b9d94bf499135ec5Eric Anholtextern void 568c22c40015db32b68b33c4944b9d94bf499135ec5Eric Anholt_mesa_glsl_initialize_functions(exec_list *instructions, 569c22c40015db32b68b33c4944b9d94bf499135ec5Eric Anholt struct _mesa_glsl_parse_state *state); 570c22c40015db32b68b33c4944b9d94bf499135ec5Eric Anholt 571e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#endif /* IR_H */ 572